baber/WOPTO huggingface dataset:
Patent GB-131624-A (GB)
IPC: H02K23/02
Abstract: 131,624. Evershed & Vignoles, and Evershed, S. May 29, 1918 Magneto-electric machines; exciting; commutating poles and windings.-The field magnets of magneto-electric machines (generators or motors) are built up of one or more rows of bar magnets which have their end faces ground accurately so as to make intimate and individual contact with flat surfaces formed on the pole-pieces. The bar magnets and pole-pieces are held rigidly in position with their contact surfaces firmly pressed together by means of a non-magnetic framework. The invention is applicable to machines operating on continuous or alternating current or as ignition magnetos. In one construction, Figs. 1 and 2, the ends of the bar magnets N, S make contact with extensions E of the pole-pieces P<1> p<2>, which are secured in position by means of tongues T on the end frames F<1>, F<2> engaging in grooves G in the pole-pieces; the magnets N, S are held by means of metal plates or strips D. Coils W connected in series with the armature may be arranged upon the pole-pieces or upon the bar magnets to compensate for the voltage drop in the armature and to protect the permanent magnets against demagnetizing forces. Fig. 3 shows another construction employing four rows of bar magnets; series-wound commutating poles Q', Q<2> with windings V are supported from the polepieces by non-magnetic brackets B<1>, B<2>. In another form, Fig. 5, the bar magnets are connected together by yoke pieces Y of soft iron, and the protective coils W are supplied with a unidirectional current from the armature through a two-part commutator and brushes C, the current supplied by the armature winding A to the external circuit being an alternating current.
Patent GB-859061-A (GB)
Title: Frequency indicator
IPC: G01R23/02
Filed: 1958-04-25
Abstract: 859,061. Frequency measurements. GOSSEN & CO. G.m.b.H., P. April 25, 1958 [June 8,1957], No. 13211/58. Class 40(5). In a frequency indicator responsive to the difference between two currents traversing paths I, II, which have inverse frequency responses, the primary of a transformer 4 feeding the paths is shunted by a capacitor 5 and connected in series with an inductor 6. The indicator which is designed for 50 cycles, has inductor 9 in one path and a tuned circuit 12, 13 in the other tuned to a frequency 65 c/s. substantially above the frequency for which it is designed, and the difference is taken across load resistors 11, 15, the latter of which is adjustable in conjunction with a resistor 16 in series with meter 17 to set the output for a correct reading on a mass produced standard scale dial. The indicator 6 which is tapped provides for measuring the frequency of two ranges of voltages 120-300 volts and 300-500 volts. The transformer 4 is partially saturated and fully saturated by voltages in the respective ranges and serves to suppress harmonics.
Patent GB-1357457-A (GB)
Title: Doppler radar system
IPC: G01S13/56
Filed: 1972-03-20
Abstract: 1357457 Radar MULLARD Ltd 20 March 1973 [20 March 1972] 13241/73 Divided out of 1357456 Heading H4D The description is included in Specification 1,357,456 but the claims relate to the phase detection and the determination of the sense of target movement.
Patent GB-1423522-A (GB)
Title: Indexing mechanisms
IPC: F16H27/02
Filed: 1972-03-21
Abstract: 1423522 Cams; ratchet mechanisms UNITED KINGDOM ATOMIC ENERGY AUTHORITY 31 May 1973 [21 March 1972] 13274/72 Headings F2K and F2Q In an indexing, i.e. stepping mechanism, a pneumatic ram (not shown) reciprocates, via a rod 13, a pin 6 carried by a shoe 11 slidable within a linear guide 12 of a housing 1, the pin 6 alternately engaging each of a pair of spaced opposed and staggered teeth-like zig-zag camtracks 9 fast on a rotatable tubular member 3 to effect stepped rotation of the member 3. The mechanism may (Fig. 1, not shown) be used to rotatably move in steps a nuclear reactor fuel element canister (C) such that a circular array of fuel elements are successively brought into register with a plunger mechanism (18) for upward displacement of the registering fuel element. In an alternative embodiment (Figs. 3 to 5, not shown) a linear indexing mechanism for moving a table (33) in stepped manner comprises two such pairs of linear zig-zag camtracks (31, 32) of opposite hand and engageable by striker pins (31a, 32a) axially reciprocated by pneumatically operated rows (38) to effect linear displacement of the table (33) in one or other opposed linear direction.
Patent GB-132940-A (GB)
IPC: D06F71/26
Abstract: 132,940. Goold, L. W., (American Laundry Machinery Co.). Nov. 27, 1918. Shirt clamps for ironing-apparatus. - Relates to neck-band formers of the type in which a number of slides are adjusted radially to vary the size of the former, and consists mainly in the use of mechanism for actuating the slides which moves in a plane at right-angles to the plane of movement of the slides. The apparatus comprises a number of slides 4 slidablv mounted on ribs 3 on a baseplate and normally kept at the inner limit of their movement by the enclosed endless spring 6. A cam 8 engages all the slides simultaneously and forces them outvards when depressed by the screw 13 engaging a threaded loss on the base-plate. The inclination of the cam may be varied at different points so as to produce varying degrees of movement to the slides at different parts of the system. A projection one one slide engages a recess in the cam to prevent rotation of the latter. This projection may be utilized as the medium for giving this particular slide a different degree of movement from the other slides.
Patent GB-693263-A (GB)
Title: Improvements in or relating to radio beam scanners
Inventor: WELLS EDWARD MARSHALL
IPC: H01Q3/12
Filed: 1951-06-05
Abstract: 693,263. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 3, 1952 [June 5, 1951], No. 13364/51. Class 40 (vii). An aerial system for producing a scanning beam of radio energy comprises a fixed source of radio energy, a radio mirror towards which the source is directed and a lens through which passes at least the energy reflected by the mirror, the mirror and the lens being connected mechanically to form a single unit which is oscillated about an axis meeting the lens axis at or behind the mirror. In the arrangement illustrated in Fig. 1, the plane mirror M and lens L are oscillated about an axis X behind the mirror M, the energy source being positioned between the mirror and the lens at F. In a modification, Fig. 2 (not shown), the source F is offset from the axis of the system and the mirror M is inclined so that it is no longer parallel to the axis X. Fig. 3 illustrates a system employing a combined mirror and lens ML comprising a honey-comb structure of tubular elements open at the front surface ML2 but closed at the rear surface ML1 to provide the mirror surface. The mirror surface may be stepped, as shown, and as shown the axis X coincides with the mirror surface. In alternative arrangements, Figs. 5 and 6 (not shown), a concave mirror is employed having a stepped dielectric lens shaped to conform closely to the mirror surface attached thereto.
Patent GB-418908-A (GB)
Title: A method of manufacturing light ferro concrete blocks suitable for house building and the like purposes
IPC: E04C2/04
Filed: 1933-05-09
Abstract: 418,908. Building-slabs. MORRISON, C. B., 26, Brockley Road, Chiswick, London. May 9, 1933, No. 13405. [Class 87 (i).] Large building-slabs are made of ferro-concrete about twenty feet high, five feet wide, and one foot thick, with teeth or projections F on the long edges to interlock with the spaces G on the next slab, and with holes A through the teeth to receive locking columns B of metal or concrete. These columns take the weight of the roof. One tooth about eight feet from the base is replaced by a cantilever block H made in two parts and bolted on the column to carry an upper floor. The slabs are reinforced by vertical bars D and helical winding E, and have weight - reducing apertures C and grooves K to engage top and bottom girders. Spaces for doors and windows may be left in the slabs. The slabs may also be used for floors and roofs, the teeth being on two, three, or four edges as required.
Patent GB-754485-A (GB)
Title: Improvements in leaf spring suspensions for motor road vehicles
IPC: B60G11/10
Filed: 1954-05-07
Abstract: 754,485. Leaf springs; road-vehicle undercarriages. DAIMLER-BENZ AKT.-GES. May 7, 1954 [May 9, 1953], No. 13427/54. Classes 108 (2) and 108 (3). In a leaf spring which is widened towards its clamping area, the spring is secured against displacement by bolts or pins 21 (Fig. 5) made to have a close fitting engagement with formations in the spring, and disposed at each side of the spring outside of the clamping area. The latter is defined as the quadrilateral area bounded by two side edges of the clamp plate 9, and the lines connecting the points of intersection of these side edges with the spring plate 19. In Fig. 5, the spring plate 19 has recesses which fit the curvature of the bolts 21. Alternatively separate bolts may be used for clamping and positioning respectively. In a similar construction (Figs. 1 and 2, not shown) only two bolts 21 are employed. In Fig. 7 the bolts 21 pass through holes 26 in the spring plate 19. The ends of the spring plate 19 may be formed with spherical heads 22, as shown, for engagement with parts of an axle mounting. In Fig. 4, the spring plate 19 carries sockets 16 by means of threaded parts 14, 15, to accommodate either end of a king pin 17. In a further modification, there may be no positive coupling between the leaf spring and the axle mounting, a roller on the mounting running on a track formed on the spring plate 19.
Patent GB-1445831-A (GB)
Title: Pharmaceutically active derivatives of glycyrrhizinic acid and their preparation
IPC: A23L27/00
Filed: 1972-08-22
Abstract: 1445831 Iron and aluminium derivatives of glycyrrhizinic acid L R BOISSEVAIN 7 Aug 1973 [22 Aug 1972] 13455/72 Heading C2U [Also in Division A5] An iron or aluminium derivative of glycyrrhizinic acid, in which the amount of glycyrrhizinic moieties is at least 5% by weight and in which at least two thirds of the glycyrrhizinic moieties are insoluble in water, the glycyrrhizinic moiety weight being calculated as acid, which has been prepared by heating a product containing water soluble iron or aluminium glycyrrhizinate at a temperature of at least 70 C. for a sufficient time for the solubility to be reduced to the desired amount is novel. Preferably an aqueous soln. of iron or aluminium glycyrrhizinate is evaporated and optionally subsequently baked. The solution may be obtained by including active iron or aluminium in a solution of the free acid, digesting the solids therein with water for at least 12 hours and separating the solids from the solution. The solution of the acid may suitably be derived from liquorice. The product has anti-inflammatory and histiogenic properties and may be made up into pharmaceutical compositions.
Patent GB-884751-A (GB)
Title: Device for severing the wire in stitching apparatus of printing machines
IPC: B41F13/66
Filed: 1959-04-20
Abstract: 884,751. Stapling machines. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. April 20, 1959 [April 19, 1958], No. 13458/59. Class 89(3) [Also in Group XXII] In stapling apparatus for printing machines wire 1, fed by rollers 2, 3 through a groove 8 in a stitching horn 5 and held by a leaf spring 14, is cut off by a knife 11 freely rotatable in the end of a plunger 9 which is reciprocable by a lever 10 in a cylinder 15 in a disc 6 rotating in the direction of arrow A. Arms 12 behind the knife bend the parts of the wire projecting on each side of the horn to form a staple which is then moved round the horn towards the cylinder 13 where it is driven into copies collected thereon.
Patent GB-134626-A (GB)
IPC: C25B1/20
Abstract: 134,626. Delage, J. C. Nov. 8, 1917, [Convention date]. Carbonic acid is obtained by the action of sodium bisulphate on dolomite or other carbonate of magnesia. In one method, 1450-1500 kg. of pounded bisulphate are dissolved in 5000 litres of water in a wooden vat, provided with a stirrer and a leaden steam-pipe. To the solution, heated to 80-90‹ C., 1000 kg. of powdered dolomite are added by means of a screw conveyer or bucket chain. Stirring checks the formation of froth. In another method, the same quantities of dolomite and bisulphate are broken into pieces of about 5 cm. diameter mixed, and melted in a basin by a special furnace or by waste heat.
Patent GB-238641-A (GB)
Title: An improved clamping device for electric transformer windings
IPC: H01F27/30
Filed: 1924-06-04
Abstract: 238,641. Railing, A. H., Widdowson, W., and Angold, A. E. June 4, 1924. Transformers. - In a clamping device for transformer windings in which pressure is applied to a clamping plate C by a spring- urged thrust rod A, a clutch comprising a split collet D is provided for preventing return movement of the rod after it has been urged forward by the spring B on shrinkage of the windings. The collet is externally tapered and is drawn into a correspondingly tapered hole in the member E by a spring F. The lower portion of the rod A may also be slightly tapered to assist the clutching action of the collet.
Patent GB-846531-A (GB)
Title: Improvements in or relating to maser devices
Inventor: LEWIN LEONARD
IPC: H01S1/02
Filed: 1958-04-30
Abstract: 846,531. Masers. STANDARD TELEPHONES & CABLES Ltd. April 30, 1958, No. 13684/58. Class 40 (9). A maser uses four or more energy levels W1 to W4. The population of the highest level W4 is increased by two pumping frequencies f13, f34 which tend to equalize the population in levels W1,W3,W4. Transitions are permissible between levels W4, W2 at a frequency f24 which may be a higher frequency than either f13 or f34. The working substance, gadolinium, is dispersed throughout a host lattice 1 of lanthanum ethyl sulphate fixed at the end of a cavity resonator 2 which is resonant at each of the three frequencies f13, f34, f24. The frequencies are fed to one extracted from the resonator by guides 3, 4, 5 and coupling apertures 6, 7, 8, as shown. The guides are fitted with impedance matching screws. The working substance is biased by a magnetic field H of some thousand gauss at right-angles to the magnetic vector h of the irradiation and is immersed in liquid helium 14. The device may be used either as an amplifier or as an oscillator.
Patent GB-670443-A (GB)
Title: Improvements in television receivers
IPC: H04N7/167
Filed: 1949-05-23
Abstract: 670,443. Television receivers. ZENITH RADIO CORPORATION. May 23, 1949 [July 2, 1948], No. 13692/49. Class 40 (iii). A television receiver for use with the television transmitter described in Specification 670,442, comprises means for utilizing the key signal received over conductors 17a to restore the coding signal received upon aerial 11 to its original form whereby it may be used to effect decoding of the coded television signals received upon aerial 1. The line synchronizing signals from sync-separator 5 are applied to the line scanning generator 8 through decoding device 9 which comprises a pulse-phase modulator similar to that used at the transmitter for effecting coding. The coding signals which are received on aerial 11 together with the sound signals are applied to stage 16 to which the key signals received upon line 17a are also applied. Stage 16 corresponds to a similar stage in the transmitter and operates during the reception of key signals to restore that characteristic of the coding signals which is modified at these times at the transmitter. The restored coding signal is then applied to decoding device 9 which so operates upon the line synchronizing signals that the picture information carried by the received picture signal is correctly reproduced by cathode-ray tube 4. Specification 647,893 also is referred to.
Patent GB-521330-A (GB)
Title: Improvements in or relating to superheterodyne wireless receiving sets
IPC: H03J3/10
Filed: 1939-05-08
Abstract: 521,330. Radio receiving sets. PHILIPS LAMPS, Ltd. May 8, 1939, No. 13766. Convention date, May 11, 1938. [Class 37] [Also in Group XL] In a superheterodyne wireless receiver adapted to cover several waveranges band-spreading is provided for certain very narrow bands within the waveranges. For these bands the tuning circuits are fixed at the centre of the band, and tuning is effected by means of a subsidiary tuning condenser which alters the oscillator circuit only. As shewn six waveranges cover the bands 11m. to 19m., 18m. to 30m., 29m. to 54m., 52m. to 177m., 172m. to 570m., and 740m. to 2100m., and band-spreading is provided for the narrow bands at 14m., 17m., 19m.. 25m., 31m., and 49m. Wavechange switches 10, 20 and 40 are moved so that members 48, 18, 28 and 38 make their respective contacts in the usual way. Condenser 34 is the normal oscillator tuning condenser. When the circuits are set to one of the bandspreading positions, contact 33 changes over, as in the manner described below, so that the circuit of the oscillator valve includes condensers 35 and 36 and the circuits controlled by switches 20 and 50. Switch 50 makes its lower contacts for three of the band-spreading positions and its upper contacts for the other three. For the 14 meter band, therefore, the oscillator frequency-determining circuit comprises the parallel combination of coils 1 and 9 and condensers 35, 36 and 54 ; for the 17 meter band, the combination is coils 1 and 9 and condensers 35, 36 and 55 ; for the 19 meter band coils 1 and 2 and condensers 35, 36 and 56 ; for the 25 meter band coils 1 and 2 and condensers 35, 36 and 57 ; for the 31 meter band coils 2 and 3 and condensers 35, 36 and 58 ; for the 49 meter band coil 3 and condensers 35, 36 and 59. The member 30 operated by control 20 enables coil 2 to be used on one only of the bands in the third waverange. A suitable mechanism for changing the connections is indicated in Fig. 2. Springs 110 rest on the surface of cams such as 101 which are driven by the main tuning shaft 100 of the receiver, the individual springs being tensioned as required by members 118, 119, 120 driven by the wave-change switch. When a wavespreading position is reached, the tensioned spring drops into a notch such as 104, and a switch such as 132 is changed over. The circuits are restored to normal by continued movement of the main tuning shaft 100.
Patent GB-1119025-A (GB)
Title: Improvements in telegraph apparatus
Inventor: MASON FREDERICK PERCIVAL
IPC: H04L13/08
Filed: 1967-03-28
Abstract: 1,119,025. Telegraphy. CREED & CO. Ltd. 28 March, 1967, No. 13950/67. Heading H4P. A buffer arrangement for use with a telegraph receiver of the type which has its mechanism in continuous cyclic movement comprises three sets of stores. The input code combinations are stored sequentially in the sets of stores, each set storing one combination, and each set is read out to the receiver before it is next required to store an input combination. In a first embodiment, Fig. 1, the input signal passes to gates A which are opened sequentially under control of unit STB which is triggered by the Start bit. Unit C steps once for each cycle of STB and opens gates G11, G12 and G13 in sequence so that successive combinations are stored in the sets of stores S1, S2 and S3. Stores S11, S22 and S33 are set when the associated set of stores contains a combination. The continuously cycling receiver gives a pulse P I  at each cycle. This operates the gating arrangement shown to enable that set of gates G21, G22 or G23 which is connected to the set of stores which must be read out first, so that the sets of stores are read out in the correct order to the receiver. In another embodiment, Fig. 2 (not shown), the input combinations are passed successively to three sets of gates, the gates in each set being enabled successively and feeding the sets of stores. The read-out of the stores is the same as that of Fig. 1.
Patent GB-1490636-A (GB)
Title: Fastening element method and stamping tool for producing it
IPC: F16B5/02
Filed: 1975-04-04
Abstract: 1490636 Nuts LITTON INDUSTRIES Inc 4 April 1975 [5 April 1974] 13983/75 Heading F2H [Also in Division B3] A nut 10 or apertured blank has an elliptical rib 22 formed therein by forging to provide engagement for a self-tapping screw. The rib may have one or more voids 24. A rib 22 may be formed adjacent each end of the bore of the nut, Fig. 8. The nut may have a clamping arm (52), Fig. 10 (not shown).
Patent GB-1034791-A (GB)
Title: Improvements in or relating to devices for the production of multiple images
IPC: G09F19/00
Filed: 1962-04-11
Abstract: 1,034,791. Display devices. M. GROSSE, and A. CARSON. April 4, 1963 [April 11, 1962], No. 13987/62. Heading G5C. A display or advertising device produces a flickering multiple image effect upon movement of the viewer. An outer flat sheet of plain glass 1 has secured to its rear surface semi-transparent coloured material 2 shaped to the word &c. it is required to display. Behind this is located a sheet which is part mirrored part transparent, for example, as shown in strips 4 and 5. This is backed by a conventional mirror 6 from which it is spaced by glass spacers 7. The mirror 6 has gaps 8 in its silvering which form a device 8 registering with sheet 2 on the sheet 1. At the back is a sheet 9 of frosted glass. The device may be viewed in daylight or illuminated by lamps. An additional flickering effect may be generated by " spinners " operated by convection from the lamps which may be switched on and off cyclically. The spinners may have faces of various coloured semi-transparent plastic materials; they may be operated by an electric motor which may also drive an endless belt of semi-opaque material between the light source and viewer or the indicia may be similarly moved. Similarly, the motor may impart a relative movement to the partly mirrored sheet of glass 3 and the conventional mirror 6. Instead of using lamps the. indicia may themselves contain lighting filaments.
Patent GB-567790-A (GB)
Title: Improvements in and relating to safety razors and safety razor blades
IPC: B26B21/18
Filed: 1943-08-27
Abstract: 567,790. Safety razors. HEIDE, H. C. (Gillette Safety Razor Co.). Aug. 27, 1943, No. 14038. [Class 30] A safety razor blade has a resilient strip 15, Figs. 1 and 2, preferably of channel form, secured at its inner edge, e.g. by spot welding 16, adjacent the cutting edge 12 of the blade, the outer edge of the strip being free so that when the blade is clamped in a holder, the strip is compressed and, thus, when the clamping pressure is released, exerts spring pressure on the blade and on one of the clamping members to hold the blade firmly against the other clamping member. The strip may be extended inwardly beyond its attachment zone to form a resilient wing portion 14 lying normally in contact with the blade, and adapting the blade for use with a holder as in Fig. 7. The guard 20 of this holder has a central portion 23 with inclined grooves to receive the wings as the blade is inserted endwise into the holder. The ends 18 of the wings are bent downwardly to facilitate entry into the grooves. The strip 15 may be a plane obliquely disposed strip instead of a channel-shaped strip.